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:2001-04-28;:2001-10-16:(1973-),,,,,:CN31-1508(2002)06-0015-05)IAPWS-IF97李春曦(,071003):IAPWS-IF97;IFC-67;;:)))IAPWS-IF97,IFC-67IAPWS-IF97,,:TK211:A0,,2060,IFC-671967IFC-67,,,,,IFC-67,,IFC-67,IFC-67IFC-67,IFC-67,,1990IAPWS,1995IAPWS-IF95,IAPWS,1984IAPWS-IF95,,,IAPWS,1997,IAPWS,IAPWS-IF97,IFC-67,IAPWS-IF9733620026BOILERTECHNOLOGYVol.33,No.6Jun.,2002IAPWS-IF97,,IAPWS-IF97,IFC-67,,IAPWS-IF971IAPWS-IF97IAPWS-IF97IFC-67,,1.1IAPWS-IF97IFC-67,IAPWS-IF97,IFC-67:273.16K[T[1073.15K,0[p[100MPa6:1:2:3:4:5:6:IAPWS-IF97,:273.15K[T[1073.15K,p[100MPa1073.15K[T[2273.15K,p[100MPa1IAPWS-IF971,IAPWS-IF9751:2:3:4:5:IAPWS-IF97IFC-6734,5634,IAPWS-IF97,,23,23IFC-67,IAPWS-IF97,,,1.2IAPWS-IF971,IAPWS-IF9712g(p,T),3f(Q,T),4()ps(T),5g(p,T)5IAPWS-IF97,IAPWS-IF97124(backwardequation),12T(p,h),T(p,s),4Ts(p)12(p,h)(p,s),4p,T(p,h),h(p,s),hc(p),h(p,s)h1p,T(p,s)2,,IAPWS-IF97)))IAPWS-IF9516331.2.111:g(p,T)RT=C(P,S)=234i=1ni(7.1-P)Ii(S-1.222)JiT(p,h)T*=H(P,G)=220i=1niPIi(G+1)JiT(p,s)T*=H(P,R)=220i=1niPIi(R+2)Ji:P=p/p*,S=T*/T,G=h/h*,R=s/s*,1,:v(P,S)pRT=PCP,u(P,S)RT=SCS-PCS,s(P,S)R=SCS-C,h(P,S)RT=SCScp(P,S)R=-S2CSS,cv(P,S)R=-S2CSS+(CP-SCPS)2CPP,w2(P,S)RT=C2P(CP-SCPS)2S2CSS-CPP:v,s,cp))),,;cv,w,R)));*))),,;ni,Ii,Ji))),,;C1:273.15K[T[623.15K,ps(T)[p[100MPa1.2.222:g(p,T)RT=C(P,S)=C0(P,S)+Cr(P,S)C0=InP+29i=1n0iSj0i,Cr=243i=1niPIi(S-0.5)Ji,,2,:g(p,T)RT=C(P,S)=C0(P,S)+Cr(P,S)C0=InP+29i=1n0iSj0i,Cr=213i=1niPIi(S-0.5)Ji,2,p=4MPas=5.85kJ#kg-1#K-132a2b2c,22a2b:P=n1+n2L+n3G2G=n4+[(P-n5)/n3]0.52IAPWS-IF97233:T2a(p,h)T*=H2a(P,G)=234i=1niPIi(G-2.1)JiT2b(p,h)T*=H2b(P,G)=238i=1ni(P-2)Ii(G-2.6)JiT2c(p,h)T*=H2c(P,G)=223i=1ni(P+2.5)Ii(G-1.8)JiT2a(p,s)T*=H2a(P,R)=246i=1niPIi(R-2)JiT2b(p,s)T*=H2b(P,R)=244i=1niPIi(10-R)JiT2c(p,s)T*=H2c(P,R)=230i=1niPIi(2-R)Ji23:P=n1+n2H+n3H2(1)H=n4+[(P-n5)/n3]0.5(2)2:176:)IAPWS-IF97273.15K[T[623.15K,0[p[ps(T)(3)623.15K[T[863.15K,0[p[p(T)(1)863.15K[T[1073.15K,0[p[100MPa1.2.333:f(Q,T)RT=(D,S)=niInD+240i=2niDIiSJiD=Q/Q*,Q3:623.15K[T[T(p)(2),p(T)(1)[p[100MPa1.2.444:psp*=[2C-B+(B2-4AC)0.5]4(3)TsT*=n10+D-[(n10+D)2-4(n9+n10D)]0.52,:A=H2+n1H+n2B=n3H2+n4H+n5C=n6H2+n7H+n8D=2G-F-(F2-4EG)0.5E=B2+n3B+n6F=n1B2+n4B+n7G=n2B2+n5B+n8B=(ps/p*)0.25;=TsT*+n9(Ts/T*)-n104:273.15K[T[647.096K,611.213Pa[p[22.064MPa1.2.555:g(p,T)RT=C(P,S)=C0(P,S)+Cr(P,S)C0=InP+26i=1n0iSJ0i,Cr=25i=1niPIiSJi5:1073.15K[T[2273.15K,0[p[10MPa2IAPWS-IF97IFC-67,IAPWS-IF97,32.1IAPWS-IF97,:v(0.2%),cp(6%),w(2%),psIAPWS-IF95,IFC-67,47%(v)~80%(ps),IAPWS-IF95,IAPWS-IF97IFC-67,IAPWS-IF97,,IAPWS-IF972.2IFC-67,IAPWS-IF97(Praguevalues),IAPWS-IF97(1)23,IAPWS-IF97,0.35%,IFC-676%IAPWS-IF97IFC-67,,IAPWS-IF97,,,18331IAPWS-IF97?0.05%?0.05%?0.2kJ#kg-1?0.02%?0.2kJ#kg-1?0.2kJ#kg-1?0.0002kJ#kg-1#K-1?1%?1%2.3IFC-67,IAPWS-IF97IAPWS-IF97,,IAPWS-IF97,IFC-67,:124,IAPWS-IF97IFC-675.13IAPWS-IF97IFC-673.6,5,IAPWS-IF97IFC-6712.23)))IAPWS-IF97,IFC-67IAPWS-IF97:,IAPWS-IF97,,IAPWS-IF97,:[1]Wagner,Wolfgang,Kruse,Alfred.PropertiesofWaterandSteam:theIndustrialStandardIAPWS-IF97fortheThermodynamicPropertiesandSupplementaryEquationsforOtherProperties,Tablesbasedontheseequation[M],Berlin:Springer-Verlag,1998.IndustrialStandardIAPWS-IF97fortheThermodynamicPropertiesofWaterandSteamLIChun-xiKeywords:IAPWS-IF97formulation;IFC-67formulation;waterandsteam;thermodynamicpropertiesAbstract:Inthispaper,theindustrialstandardIAPWS-IF97forthethermodynamicpropertiesofwaterandsteamisintroducedandcomparedwithIFC-67formulation.IAPWS-IF97improvessignificantlyamongitsusablerangeandregiondivisionandcalculationmodels.Anditsadvantageembodiesinitsaccuracyandcomputationspeedandconsistencyalongtheregionboundaries.196:)IAPWS-IF97